There are two shell scripts for you to configure your LCD which purchased from GeeekPi/52Pi. resolution_tool.sh is to change the resolution of your screen in Raspbian OS environment. calibration_tool.sh is to install calibration tools and recalibrate your touch screen.
git clone https://github.com/geeekpi/lcd-config.git
cd lcd-config/
sudo chmod +x *
sudo bash resolution_tool.sh
sudo bash calibration_tool.sh